1 files changed, 63 insertions, 0 deletions
diff --git a/test/examples/charcodeat-benchmark.js b/test/examples/charcodeat-benchmark.js
new file mode 100644
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+++ b/test/examples/charcodeat-benchmark.js
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/**
+ * Simple benchmark to measure charCodeAt specialized method performance
+ */
+
+var str = "sghjkdsfkjghsdfjkfkjdfkjdfjkdfjkfdjkfdkfldjfhdfpkjdhafgksdjfgldfgjldfkjgdlfjgldkfjgkldfj";
+var RESULT1 = 9187;
+var RESULT2 = 1496;
+
+function f() {
+    var len = str.length;
+    var c = 0;
+    for (var i = 0; i < len; i++) {
+	c += str.charCodeAt(i);
+    }
+    return c;
+}
+
+function bench(res) {
+    var d = new Date;
+    var sum = 0;
+    for (var i = 0; i < 1e6; i++) {
+	sum |= f();
+    }
+    if (sum == res) {
+	print("Verified OK"); 
+    } else {
+	print("Verification failed " + sum + " should be " + res);
+    }
+    print((new Date - d) + " ms");
+}
+
+bench(RESULT1);
+
+print("Replacing charCodeAt... ");
+
+String.prototype.charCodeAt = function() { return 17; }
+
+bench(RESULT2);
+
+print("Done");